Taillight assembly



FIG. 1 is a front perspective view of a taillight assembly showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a top plan view thereof.

The lightest shaded areas show portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a taillight assembly, as shown and described. 